sad day

2 of my hens have been poorly and this morning i went to let them out and 1 had died. the other 1 thats poorly is struggling to walk about and just sits there in the corner, dont know whats wrong with them maybe old age. they are ex batts so i'm glad they have had a good life since i got them, hope this 1 pulls through

What symptoms were they displaying? What were their combs like?Their crops?Do you think it was old age?

I noticed that one of my ex bats was developing a blue comb last week in the heat despite having on demand access to water. She's the dominant one too, so it wasn't the other girls being bullies. A quick bowl of water soon sorted her out.